微信小程序获取当前时间及星期几的实例代码

效果图如下所示

实例代码如下：

util.js

function formatTime(date) {
 var year = date.getFullYear()
 var month = date.getMonth() + 1
 var day = date.getDate()
 var hour = date.getHours()
 var minute = date.getMinutes()
 var second = date.getSeconds()
 return [year, month, day].map(formatNumber).join(\'/\') + \' \' + [hour, minute, second].map(formatNumber).join(\':\')
}

function formatNumber(n) {
 n = n.toString()
 return n[1] ? n : \'0\' + n
}
function formatTimeTwo(number, format) {
 var formateArr = [\'Y\', \'M\', \'D\', \'h\', \'m\', \'s\'];
 var returnArr = [];
 var date = new Date(number * 1000);
 returnArr.push(date.getFullYear());
 returnArr.push(formatNumber(date.getMonth() + 1));
 returnArr.push(formatNumber(date.getDate()));
 returnArr.push(formatNumber(date.getHours()));
 returnArr.push(formatNumber(date.getMinutes()));
 returnArr.push(formatNumber(date.getSeconds()));
 for (var i in returnArr) {
 format = format.replace(formateArr[i], returnArr[i]);
 }
 return format;
}

const getWeekByDate = dates => {
 let show_day = new Array(\'周日\', \'周一\', \'周二\', \'周三\', \'周四\', \'周五\', \'周六\');
 let date = new Date(dates);
 date.setDate(date.getDate());
 let day = date.getDay();
 return show_day[day];
}

module.exports = {
 formatTime: formatTime,
 formatTimeTwo: formatTimeTwo,
 getWeekByDate: getWeekByDate
}

.js

const util = require(\'../../utils/util.js\')
Page({
 data: {
 },
 onLoad: function (options) {

 let time = util.formatTime(new Date());

 console.log(\'当前日期和时间:\', time)
	
	console.log(\'今天周几:\', util.getWeekByDate(new Date()))
 
 //获取当前时间戳 
 var timestamp = Date.parse(new Date());
 timestamp = timestamp / 1000;
 
 console.log(\"当前时间戳为:\" + timestamp);

 console.log(\"时间戳转日期:\",util.formatTimeTwo(timestamp, \'Y-M-D h:m:s\'));

 //获取当前时间 
 var n = timestamp * 1000;
 var date = new Date(n);
 //年 
 var Y = date.getFullYear();
 //月 
 var M = (date.getMonth() + 1 < 10 ? \'0\' + (date.getMonth() + 1) : date.getMonth() + 1);
 //日 
 var D = date.getDate() < 10 ? \'0\' + date.getDate() : date.getDate();
 //时 
 var h = date.getHours();
 //分 
 var m = date.getMinutes();
 //秒 
 var s = date.getSeconds();


 console.log(\'当前年月日:\',date.toLocaleDateString());

 console.log(\'当前日期时间:\',date.toLocaleString());

 console.log(\'当前时间:\',date.toLocaleTimeString());

 console.log(\"当前日期和时间:\" + Y + \'-\' + M + \'-\' + D + \' \' + h + \":\" + m + \":\" + s);
 },
})

参考手册：https://www.w3school.com.cn/js/js_date_methods.asp

总结